Wide angle version, at this photo M13 looks like a bright star.
This photo was taken under the Mariestad Starparty, Under the Stars. We got a very dark night almost free from clouds.
It gave me a chance to do more test with different setting.
This time I lowered the iso setting to 400 to achieve more dynamic.

The image is processed in the AstroImageJ software which I have developed macros to.
It need that I have taken the images with dithering, now I didn't had that possibility with this mount,
but polar align was not perfect so I got some kind of dithering, enough to get rid of the hot pixels.

The Sigma 150mm APO 2.8 give me very sharp stars compare to other lenses I have.
And it will be better when I have practice the polar align process better.

Coordinates/Direction :

RA: 16h41m, DEC: +36o27'

Object size :

20'

Object magnitude :

5.8

Object :

M13

Date :

2016-03-01

Time (UT) :

00:44 to 02:02

Mount :

EQ6 controlled by EQMOD

Guide :

PHD2 in dithering mode and QHY5 camera off-axis

Lens/telescope :

TS130, 910mm f7 (682mm, f5.3)

Corrector/Barlow :

Riccardi flat field corrector 2.5" x0.75

Filter :

none

camera :

Canon 6D, controlled by APT

Film/CCD :

Raw

Exp. time :

33x120 seconds, iso800

Image process tool :

Fitswork, Irfanview

Processing :

crop, level, no cal dark&bias, only dithering

Weather :

clear

Site :

Sweden, Stockholm

Comment :

A new shot on M13, no calibration, only dithering to get rid of hotpixels.

Coordinates/Direction :

RA: 16h41m, DEC: +36o27'

Object size :

FOV 20'

Object :

M13

Date :

2016-02-24

Time (UT) :

00:12 to 01:34

Mount :

EQ6 controlled by EQMOD

Lens/telescope :

TS130, 910mm f7 (682mm, f5.3)

Corrector/Barlow :

Riccardi flat field corrector 2.5" x0.75

Filter :

none

camera :

Canon 6D

Film/CCD :

Raw

Exp. time :

60x60 seconds, iso800

Image process tool :

Fitswork, Irfanview

Processing :

resize, level, no cal dark&bias, only dithering

Weather :

clear, full moon

Site :

Sweden, Stockholm

Comment :

First shot with my Canon 6D on M13.

M13 zoom in

Object size :

FOV 20'

Object :

M13

Comment :

A zoom in to the core of M13, pixel 1:1 relation. In the future I will use the dithering technique as an alternative to dark&bias calibration. It doesn't work perfect today, but I will
test out the settings to get it to work better. The sharpness wasn't perfect this time and the full moon also disturb,